[Fab] new 3D printing techniques

Hi, all!
I am investigating new 3D printing techniques... like people using
multicolor prints for computer vision tracking, or the crazy awesome
Kinematics from n-e-r-v-o-u-s. I suspect there are a lot of neat things in
that area that I don't know how to find... do any of you know of things
like that?
Valkyrie
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